"Scientists at the National Institutes of Health report they have discovered in mouse studies that a small molecule released in the spinal cord triggers a process that is later experienced in the brain as the sensation of itch.
Zonalon Consumer (continued)
This drug should not be used with the following medications because very serious, possibly fatal interactions may occur: arbutamine, cisapride, disopyramide, halofantrine.
Taking MAO inhibitors with this medication may cause a serious (possibly fatal) drug interaction. Avoid taking MAO inhibitors (isocarboxazid, linezolid, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, selegiline, tranylcypromine) during treatment with this medication. Most MAO inhibitors should also not be taken for two weeks before and after treatment with this medication. Ask your doctor when to start or stop taking this medication.
Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: anticholinergics (e.g., atropine, belladonna alkaloids, scopolamine, drugs for Parkinson's disease such as benztropine), certain drugs for high blood pressure (e.g., clonidine, guanadrel, guanethidine, reserpine), digoxin, levodopa, lithium, thyroid medication, valproic acid, drugs affecting liver enzymes that remove doxepin from your body (e.g., alcohol, barbiturates such as phenobarbital, cimetidine, haloperidol, phenothiazines such as thioridazine, St. John's wort, terbinafine, certain drugs for heart rhythm such as flecainide/propafenone, certain HIV protease inhibitors such as fosamprenavir, certain anti-seizure drugs such as carbamazepine/phenytoin, antidepressants such as amitriptyline, duloxetine, fluvoxamine, paroxetine, sertraline, trazodone).
Many drugs besides doxepin may affect the heart rhythm (QT prolongation), including amiodarone, dofetilide, pimozide, quinidine, procainamide, sotalol, macrolide antibiotics (such as erythromycin), sparfloxacin, among others. Therefore, before using doxepin, report all medications you are currently using to your doctor or pharmacist.
Also report the use of drugs which might increase seizure risk when combined with this medication such as isoniazid (INH), theophylline, or tramadol, among others. Consult your doctor or pharmacist for details.
Tell your doctor or pharmacist if you also take drugs that cause drowsiness such as: certain antihistamines (e.g., diphenhydramine), anti-seizure drugs (e.g., levetiracetam), medicine for sleep or anxiety (e.g., alprazolam, diazepam, zolpidem), muscle relaxants, narcotic pain relievers (e.g., codeine), psychiatric medicines (e.g., chlorpromazine, risperidone, nefazodone).
Check the labels on all your medicines (e.g., antacids, cough-and-cold products, diet aids) because they may contain cimetidine, ingredients that cause drowsiness, or decongestants/stimulants that could increase your heart rate or blood pressure. Ask your pharmacist about using those products safely.
OVERDOSE: This medicine may be harmful if swallowed. If swallowing or overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose or swallowing may include: confusion, hallucinations, big/wide pupils, fast/irregular heartbeat, severe dizziness, fainting, seizures, loss of consciousness.
NOTES: Do not share this medication with others.
Use this medication only for the condition for which it was prescribed. Tell all your doctors you use this medication.
MISSED DOSE: If you miss a dose, apply it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not apply more to catch up.
STORAGE: Store at room temperature at or below 80 degrees F (27 degrees C) away from light and moisture. Do not store in the bathroom. Keep all medicines away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.
Information last revised September 2013. Copyright(c) 2013 First Databank, Inc.
Additional Zonalon Information
- Zonalon Drug Interactions Center: doxepin top
- Zonalon Side Effects Center
- Zonalon Overview including Precautions
- Zonalon FDA Approved Prescribing Information including Dosage
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